MINIATURE ALUMINUM ELECTROLYTIC CAPACITORS
MK
High Ripple Current
Series
Low Impedance
Solvent Proof
Ripple current compared with LK series
Enabled high ripple current by a reduction of impedance at high frequency
High reliability withstanding 5000 hours load life at 105 C
(2000 ~ 4000 hours for smaller case sizes as specified below)
Complied to the RoHS directive
Item
Operating temperature range
Leakage current max.
Capacitance tolerance
Dissipation factor max.
(at 120Hz, 20°
C)
Low temperature characteristics
(Impedance ratio at 120Hz)
Characteristics
-40 ~ +105 C
I = 0.01CV or 3 A whichever is greater (after 2 minutes)
I = 0.03CV or 4 A whichever is greater (after 1 minute)
20% (20 C, 120Hz)
Capacitance > 1000 F : tan increases by 0.02 for each 1000 F from below value.
WV
tan
6.3
0.22
10
0.19
16
0.16
25
0.14
35
0.12
50
0.10
63
0.08
100
0.08
Z-40 C / Z+20 C
3
Z-25 C / Z+20 C
2
After an application of DC bias voltage plus the rated AC ripple current for 5000 hours at 105 C.
The measurement shall meet the following limits. The DC voltage plus the peak AC voltage
combined must not exceed the rated voltage.
Load life
Less than specified value
Leakage current
Within 25% of the initial value
Capacitance change
Less than 200% of the specified value
tan
5, 6.3 : 2000 hours, 8 : 3000 hours
After 1000 hours no load test, leakage current, capacitance and tan are same as load life value.
The measurement shall be performed at 20 C by the KS C 6503 clause 5.1.
Unit : mm
Shelf life (at 105°
C)
DRAWING
Insulating sleeve
d 0.05 Tinned copper-ply wire
D 0.5 max.
ØD
P 0.5
5
2.0
0.5
6.3
2.5
0.5
1.5
8
3.5
0.6
10
5.0
0.6
12.5
5.0
0.6
2.0
16
7.5
0.8
18
7.5
0.8
P
Ød
β
L
max.
15 min.
4 min.
Safety vent
FREQUENCY COEFFICIENT OF PERMISSIBLE RIPPLE CURRENT
μ
F
Frequency
~ 33
39 ~ 270
330 ~ 680
820 ~ 1800
2200 ~ 15000
120Hz
0.40
0.50
0.55
0.60
0.70
1kHz
0.65
0.70
0.75
0.80
0.85
10kHz
0.82
0.84
0.86
0.88
0.90
50kHz
0.94
0.96
0.96
0.97
0.97
100kHz≦
1.00
1.00
1.00
1.00
1.00
110
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